Perhaps, because Avast is registering false positives.
always? i dont have any statistic, but from all the infected website posts that comes in here and websites we check i would say avast is correct in more the 90% of the cases
My friend updated her WordPress website to the latest 3.7.1 this morning and updated the plugins. Now, she is getting this alert from Avast and the site is blocked.
what is the message from avast? .... a screenshot maybe and what is the URL you have problem with?